Device for atomizing liquid insecticides or fungicides



DEVICE FOR ATOMIZING LIQUID INSEGTICIDES OR FUNGCXDES Filed Jam. 6,1937" [NIVEA/.TOR

- bottle I.

. Patented Aug. 1, 193.9

DEVICE Foa A'roMIzING LIQUID INSEC- frrcmaspa FUNGIcmEs Hubert .1).Bliiiott, vToledo, ohio, assignor to Plaskon Company, Incorporated,Toledo, Ohio, a corporation of Delaware I Appiioanonjanuary s, 1937,serial No. 119,306 1 claim. (crass-95) This invention relates toatomizers, and more particularly to a, device for atomizing liquidinsecticides or fungicides under thev pressure of a gas dissolved insuch liquida It is customary to spray liquid insecticides by means of anatomizer, into which air is forced by an associated plunger pump orrubber bulb. The present invention, however, resides in a device forstoring gas charged liquid insecticides or fungicides and in cooperatingmeans for atomizing such charged liquids by means of the pressuredeveloped by such gas.

`The principal object of the invention is the provision of improvedmeans for storing a gas charged liquid insecticide or fungicide.

Another object is the provision of van improved container for suchcharged fluid insecticide; and.

Still another object is the provision of improved means readilyassociable with such container for spray vaporizing such `chargedinsecticides.

' Referring to the drawing:-

Figure I is a front elevational view of the device embodying myinvention.

Figure II is a sectiontherethru substantially along the line lll- II ofFigure III.

Figure III is a plan view of the device shown in Figure I. l Y.

Referring to the drawing in detailz- The device embodying the inventioncomprises a bottle I, having walls of such thickness so as to withstandthe pressure of a gas dissolved or' adsorbed in a liquid insecticide orfungicide shown as contained in the bottle and designated by the letterL. gas in the space above the' liquid being designated by the letter G.This bottle I is closed by means of a stopper 2, preferably of resilientrubber, through the center of which a tube 3 projects. This tube iscemented or otherwise firmly held in the stopper. The lower open end ofthe tube extends nearly to the bottom of Athe bottle and the upper endprojects somewhat above the surface of the stopper 2. This upper end ofthe tube 3 is sealed with a disk 4 of soft and easily penetrable metal,such as tin or lead. The atomizing means, forming a part of theinvention, comprise a plastic molded body 5 of such shape so as tosnugly hold the This bottle I is resting on a gasket 6 of resilientrubber which is interposed between the body 5 and the bottom of thebottle. Another resilient gasket 'I is positioned between the neck endof the bottle I andthe flat bottom of an annular depression 8, in anatomizer head 9 which, by means of a flange I0, is threaded on' Ision I6surrounds the valve stem hole in the upthe molded body 5. In assemblingthe head 9 it is desirable that the gaskets 6 'and "I be somewhatcompressed to form a gas tight joint -around the neck end of the bottleand exert frictional forces on the threads to prevent the head from 5becoming accidentally unscrewed from the casing. A pair ofcounterbore-like depressions II and I2 are molded in the head 9 directlyabove the bottle opening. A shoulder I3, formed by the junction of themolded depressions II and I2, is angularly faced and forms a seat for aconical Lvalve head Il whose stem I5 projects upwardly through avertical hole in the head 9. A straight walled, flat bottomed,counterbore-like depresl5 per face of the head 9, and a flanged rubbergasket Il is seated therein surrounding the stem I5. The flange of thisgasket I1 forms a packing around the stem I5 of the valve head I4. Aspring I Il circumjacently mounted on the stem by exerting pressureagainst the underside of a button I9, xed to the extending portion ofthe stem I5, holds the valve head I4 against the shoulder I3, thusforming a gas tight closure. Since an equal amount of pressure isexerted by the lower end of the spring against the flange of the rubbergasket I1, this flange is slightly extruded thus increasing its packingaction of the stem I5.

Th :fiat surface of the valve head I4 is providedwith a sharp metallicspur 2|), in such position, so that when the button I9 is pressed anamount sucient to somewhat compress the gasketll, the spur 20willpenetrate the seal 4 in the end of the tube 3, thus breaking theseal oi the bottle I.

The counterbore-like depression I2, in the interior of the atomizer head9, is provided with a narrow molded pocket 2l and a small hole 22extends between the pocket and the exterior of, the atomizer head. Toaid in atomizing the liquid a thin metallic pin 23, extending throughthe hole 22, is studded in the atomizer head 9 and its slightly bulboushead 24 is positioned in the outer end of the hole 22 flush with theexterior of the head.

When the filled bottle I has been inserted in the molded body 5 and theatomizing head 9 has been securely Vthreaded thereto, pressure isapplied to the push button I9 until the gasket I1 is slightly depressed,thus causing the spur 2c to penetrate the sealing disk 4. Reducing thepressure on the button I9 slightly so that its bottom rests on theuncompressed surface of the gasket II releases some of the dissolved gasin 55 the bottle, thus creating a pressure and forcing some of theliquid contents through the opening formed when the valve head H isforced from the angular shoulder I3 by pressure onthe button I9 andthence, with increased velocity, through the bore 22. 'I'he head 24 ofthe pin 23 in the well known manner, aids in the atomizing process. I

While in this embodiment the container is shown in the form of a bottle,it will be readily seen that a metal container, such as the widely knowntin can", may be advantageously employed. When such is the case, thesealed tube 3 projects through the end of the can to which it issoldered or otherwise sealed. It will also be seen that the embodimentof the invention herein disclosed is well'adapted to fulll the objectsprimarily stated; it is to be understood, however, that the invention issusceptible to variation, modification and change within the spirit andscope of the subjoined claim.

Having described the invention, I claims' In a device of the classdescribed, in combina-I tion, a sealed inner .container charged with aninsecticide vliquid and a pressure creating gas, said sealed innercontainer having a puncturable seal and a conduit leading from saidpuncturable seal to said insecticide liquid, a casing comprising ahollow body of molded plastic material to receive said sealed innercontainer and a cover of molded plastic material, there being a jointbetween'said coverand 4said sealed inner container when the device isassembled, means for rendering the joint between said cover and saidrcontainer fluid tight, said body and cover having cooperating threadsfor holding said body and cover in assembled relation and exertingclamping pressure upon said container, said cover having a passageformed therein which passage terminates at one end in an atomizingnozzle, a spur mounted within said passage and adapted to puncture saidpuncturable seal, a valve within and normally closing said passage, andmeans mounted in said cover and connected to said valve and manuallyoperable from the exterior of said cover to open said passage and causesaid liquid to be atomized from said nozzle.

HUBERT D. BENNETT.

